Fig. 28From: On the use of ELF/VLF emissions triggered by HAARP to simulate PLHR and to study associated MLR eventsCase 6: data recorded on April 5, 2010 between 06:29:10 UT and 06:31:00 UT. The top panel presents a spectrogram of an electric field component between 0 and 5 kHz. Its intensity is color-coded according to the scale on the right. The bottom panel presents the electron density. The parameters displayed below are the time in UT, the geographic latitude and longitude, the invariant latitude and the L valueBack to article page